Visa and Mastercard are the most universally accepted credit cards at betting sites, popular credit cards like Discover and American Express are accepted at multiple sportsbooks as well.

Mastercard is not accepted at certain stores and merchants that only take cash, such as vendors at a local fair. Mastercard is also not accepted at retail chains that have an exclusive agreement with another card network. For example, Costco accepts Mastercard only for online purchases.

Rangers' traditional support is largely drawn from the Protestant Unionist community, whilst Celtic's traditional support is largely drawn from the Catholic Irish community. The first Old Firm match was won by Celtic and there have been over four hundred matches played to date.

Rangers fans pay tribute to The Queen by singing national anthem before Champions League match against Napoli. Rangers fans have paid tribute to The Queen by singing the national anthem before the Napoli match, despite UEFA rejecting a request by the Scottish club.